Amazon Simple Storage Service Documentation

Amazon Simple Storage Service (Amazon S3) is storage for the Internet. You can use Amazon S3 to store and retrieve any amount of data at any time, from anywhere on the web. You can accomplish these tasks using the simple and intuitive web interface of the AWS Management Console.

Getting Started Guide
Introduces you to Amazon S3, helps you set up an account, and walks you through a simple example to use Amazon S3 for the first time. Also provides tips and links to advanced product features and resources.
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API Reference
Describes all the Amazon S3 API operations in detail. Also provides sample requests, responses, and errors for the supported web services protocols.
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Quick Reference Card                                      
Briefly covers the essential commands for using Amazon S3 from the command line interface.
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Developer Guide
Provides a conceptual overview of Amazon S3 and includes detailed instructions for using the various features.
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Console User Guide      
Provides information to help you use Amazon S3 with the AWS Management Console.
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